Kool-Jool In 8 oz Jar GemOro Caution: Always wear eye protection

Caution: Always wear eye protection when using these tools

7mm diameter insert stake

All QC holders and gravers in the GRS system are also compatible with GRS power engravers

repeatable workflow for profitable monogram jobs

Kool-Jool In 8 oz Jar GemOro Caution: Always wear eye protectionKool Jool is a protective gel designed to shield heat sensitive stones and organic materials during soldering. Applied directly to stones or surrounding metalwork, it acts as a thermal barrier that absorbs and dissipates heat before it can reach delicate materials. Whether you're working with organics like pearl, coral, and amber or fragile mineral stones such as emerald, turquoise, opal, or dyed stones, Kool Jool helps reduce the risk of heat damage